The International Space Station travels at 17,500 mph and orbits Earth every 90 minutes.

Solar eclipses occur when the Moon blocks the Sun from Earth's view.

Fact #189 · Space

There are planets made of diamond.

Fact #1688 · Space

There are more stars in the universe than grains of sand on Earth.

Fact #1680 · Space

There are rogue planets drifting through space with no star at all.

Fact #1731 · Space

Neutron stars are so dense that a single teaspoon would weigh billions of tons on Earth.

Fact #1782 · Space

The International Space Station orbits Earth roughly every 90 minutes.

Fact #81 · Space

The Sun occasionally emits powerful solar flares.

Fact #1620 · Space

Venus has surface temperatures hot enough to melt lead.

Fact #215 · Space